Colorado traffic jams have changed a lot over the years, like a lot. See the difference between traffic in Colorado in 1863 versus 2018. with these pictures.
If you're traveling on I-70 today around Glenwood Canyon, expect your travel time is to be longer. Traffic in the canyon has slowed due to a jackknifed semi.
A herd of elk crossing the street caused a traffic jam in Estes Park. I lost count of how many elk are crossing, I'd say there's over 20, how about you?